New database initialization procedure in v3.18

[llaville]

Whatever environment you install CompatInfoDB (dev, CI, prod) or embedded in another project like CompatInfo, the new db:create command simplify how to install and initialize the database.

After install project source code, you have to :

• Configure the database connection. Not required if you used the default behaviour (SQLite driver), because it's auto-configured
• Run bin/compatinfo-db db:create

You should have following output :

If you have an error, please run the bin/compatinfo-db diagnose command to learn more. Here are what you will get in case of good installation.